greenart7c3 on Nostr: Let's say you use damus and nos.lol as relays and they ban you or they delete ...

Let's say you use damus and nos.lol as relays and they ban you or they delete something you would like to not be deleted, having a backup of your data locally you can just broadcast all your events to another relay.
App data, drafts and other stuff can leak sensitive information about you, who you talk, what events you are making a reply, maybe there's wallet information in the app settings. Using a private relay only you will have access to this data and if your nsec gets compromised you can delete the data.
You can also run a relay on a server or in your computer for this if you don't want it running on your phone